ecg3

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ECG 3 Click

ECG 3 Click demo application is developed using the NECTO Studio, ensuring compatibility with mikroSDK's open-source libraries and tools. Designed for plug-and-play implementation and testing, the demo is fully compatible with all development, starter, and mikromedia boards featuring a mikroBUS™ socket.

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Click Library

• Author : MikroE Team
• Date : Jan 2020.
• Type : SPI type

Software Support

Example Description

This Click is made for ECG and HR, equipped with an ultra-low power, single channel, integrated biopotential AFE, with the ECG and R-to-R detection functionality.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.Ecg3

Example Key Functions

• ecg3_cfg_setup Config Object Initialization function.

void ecg3_cfg_setup ( ecg3_cfg_t *cfg );

• ecg3_init Initialization function.

err_t ecg3_init ( ecg3_t *ctx, ecg3_cfg_t *cfg );

• ecg3_default_cfg Click Default Configuration function.

void ecg3_default_cfg ( ecg3_t *ctx );

• ecg3_get_ecg Function reads ECG data from FIFO register.

void ecg3_get_ecg ( ecg3_t *ctx, uint32_t *out_ecg );

• ecg3_check_status Function checks a status flag for the desired interrupt.

uint8_t ecg3_check_status ( ecg3_t *ctx, uint32_t bit_mask );

• ecg3_get_rtor Function reads Heart Rate and R - R data and calculates HR data to BPM, and RR data to ms.

void ecg3_get_rtor ( ecg3_t *ctx, uint16_t *out_hr, uint16_t *out_rr );

Application Init

Initializes SPI interface and performs the all necessary configuration for device to work properly.

void application_init ( void )
{
    log_cfg_t log_cfg;
    ecg3_cfg_t cfg;

    /** 
     * Logger initialization.
     * Default baud rate: 115200
     * Default log level: LOG_LEVEL_DEBUG
     * @note If USB_UART_RX and USB_UART_TX 
     * are defined as HAL_PIN_NC, you will 
     * need to define them manually for log to work. 
     * See @b LOG_MAP_USB_UART macro definition for detailed explanation.
     */
    LOG_MAP_USB_UART( log_cfg );
    log_init( &logger, &log_cfg );
    log_info( &logger, "---- Application Init ----" );

    //  Click initialization.

    ecg3_cfg_setup( &cfg );
    ECG3_MAP_MIKROBUS( cfg, MIKROBUS_POSITION_ECG3 );
    ecg3_init( &ecg3, &cfg );

    ecg3_sw_reset( &ecg3 );
    ecg3_fifo_reset( &ecg3 );
    Delay_ms ( 100 );

    ecg3_default_cfg ( &ecg3 );
    Delay_ms ( 300 );
}

Application Task

Reads ECG Data every 8ms and sends this data to the serial plotter.

void application_task ( void )
{
    ecg3_get_ecg( &ecg3, &ecg_data );

    plot_ecg( );
}

Note

Additional Functions :

• void plot_ecg() - Sends ECG Data to the serial plotter.
• void log_rtor_() - Sends Heart Rate and R - R Data to the uart terminal.

Application Output

This Click board can be interfaced and monitored in two ways:

• Application Output - Use the "Application Output" window in Debug mode for real-time data monitoring. Set it up properly by following this tutorial.
• UART Terminal - Monitor data via the UART Terminal using a USB to UART converter. For detailed instructions, check out this tutorial.

Additional Notes and Information

The complete application code and a ready-to-use project are available through the NECTO Studio Package Manager for direct installation in the NECTO Studio. The application code can also be found on the MIKROE GitHub account.

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